Reliability Comparisonother · How we score

2016 Infiniti QX70 vs 2010 Infiniti FX

Our Recommendation

2016 Infiniti QX70

Higher AutoScore, low risk, and a stronger overall profile make it the clear pick.

Reliability Side-by-Side

2016

Infiniti QX70

Winner
85/ 100
LOW RISK

Grade B+

A potent luxury crossover with excellent powertrain reliability, but pay close attention to common electrical and suspension wear.

2010

Infiniti FX

83/ 100
MODERATE RISK

Grade B+

A performance-luxury crossover that offers lasting driving enjoyment, provided you address its predictable maintenance needs and watch for electrical quirks.

Best For

Best for Reliability

2016 Infiniti QX70

Score 85/100 vs 83/100

Best for Lowest Risk

2016 Infiniti QX70

low risk

Best for Lowest Annual Upkeep

2016 Infiniti QX70

$400-600

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Cost of Ownership

Line Item2016 Infiniti QX70★2010 Infiniti FX
Annual Maintenance$400-600$500-800
Moderate Repairs$500-1,500 occasionally$600-2,000 occasionally (e.g. suspension refresh, major electrical diagnosis and repair)
MPG (City/Hwy)17 / 2416 / 23
MSRP (New)$45,850$43,450

Major-failure risk and insurance outlook for each vehicle are in their full reliability reports.

Printed Owner's Guidebooks · $29.99 each · free US shipping

2016 Infiniti QX70 Owner's Guidebook

2016 Infiniti QX70

Reliability report · logs · 13 chapters

2010 Infiniti FX Owner's Guidebook

2010 Infiniti FX

Reliability report · logs · 13 chapters

Biggest Risks on Each

2016 Infiniti QX70

  • Suspension Components

    60,000-90,000 mi

  • Electrical System

    50,000-100,000 mi

  • Power Steering System

    80,000-120,000 mi

2010 Infiniti FX

  • Suspension Components

    60,000-100,000 mi

  • Electrical System & Sensors

    70,000-110,000 mi

  • Brake System Wear

    30,000-70,000 (consumables), 80,000-120,000 (calipers/sensors) mi

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Editorial Take

The 2016 Infiniti QX70 and 2010 Infiniti FX are fundamentally the same vehicle, with the QX70 representing a mid-cycle refresh and a naming convention change from Infiniti's former FX line. Both cater to buyers seeking a sporty, performance-oriented luxury crossover that prioritizes driving dynamics and distinctive styling over outright utility. The primary differences lie in the age of the vehicles, minor styling updates, and the availability of certain modern features, along with a crucial change in powertrain options. Those on a tighter budget looking for a thrilling ride will gravitate towards the older FX, while buyers desiring a slightly more refined experience with updated technology and potentially lower mileage will consider the QX70. HEAD-TO-

Reliability & Common Issues

2010 Infiniti FX (FX35, FX50): Power Steering Pump Leaks: A fairly common issue on VQ-series engines of this era. Owners often report leaks developing around 80,000-120,000 miles, leading to fluid loss and potential pump failure if not addressed. Camshaft Position Sensor Failures: Also a known weakness in the VQ engine. Failure can occur at various mileages (e.g., 60,000-100,000 miles) and may cause rough idling, stalling, or difficulty starting the engine. Interior Rattle/Creaks: As with many vehicles nearing the 10-year mark, owners may report increased interior noises from the dashboard or door panels, often related to plastic trim pieces or aging clips. 2016 Infiniti QX70 (QX70 3.7): Navigation/Infotainment System Glitches: While generally reliable, some owners have reported occasional freezing or slow response from the infotainment system, particularly after several years of use. This is often resolved with a system reset or updated software. Suspension Component Wear: Given the sporty tuning and age, suspension bushings and control arm components can wear out, particularly on vehicles with higher mileage (e.g., 80,000+ miles). This can manifest as clunking noises over bumps or a less composed ride. Minor Electrical Issues: Some owners have reported sporadic issues with door lock actuators or power window switches failing, usually after 5-7 years of ownership.

Value & Cost of Ownership

When new, the 2010 FX was a significant investment, ranging from the low $40,000s to nearly $60,000 for the V8. The 2016 QX70, being newer, started slightly higher, in the mid-to-high $40,000s. On the used market, the value proposition changes dramatically. A 2010 Infiniti FX can now be found for anywhere from $8,000 to $15,000, depending heavily on condition, mileage, and powertrain (FX50 models tend to fetch a bit more). The 2016 Infiniti QX70, being six years newer, commands a higher price, typically ranging from $15,000 to $25,000. This makes the older FX a much more accessible entry point into the luxury performance crossover segment. Insurance costs for both vehicles will be relatively high due to their luxury branding and performance capabilities. There will likely be a marginal increase for the 2016 QX70 due to its newer safety technology and potentially higher repair costs for those systems. Maintenance costs will be similar, as they share many components and require premium parts and labor. The V8-powered 2010 FX50 will generally be more expensive to maintain and fuel than the V6 models. Resale value on both has already taken the biggest hit, with the QX70 holding a slightly better percentage of its remaining value due to its newer age and lower overall mileage.

Editorial Verdict

Best for families: Neither vehicle is ideal for large families due to limited cargo and rear passenger space. For very small families, the 2016 QX70 might offer a slight advantage with its newer active safety features like Forward Collision Warning and available Lane Departure Prevention, providing an extra layer of peace of mind. Best for commuters: Both excel as commuter vehicles, offering a comfortable yet engaging drive. The 2016 QX70 3.7 has marginally better fuel economy (17/24 MPG RWD) and offers more modern infotainment features (like standard Bluetooth audio streaming), making it a slightly better choice for the daily grind, assuming budget allows. For budget-conscious commuters, the 2010 FX35 provides nearly the same experience at a much lower purchase price. Best for enthusiasts: The 2010 Infiniti FX50 is the clear winner here. Its powerful 5.0-liter V8 engine, producing 390 horsepower, offers a level of raw acceleration and a thrilling exhaust note that the 2016 QX70, with its maximum of 325 horsepower from the V6, simply cannot match. If pure performance and the V8 experience are paramount, the FX50 is the one to seek out. Best value overall: The 2010 Infiniti FX offers exceptional value. It provides nearly identical sporty driving dynamics, luxurious interior, and distinctive styling as the QX70, but at a significantly lower used purchase price. While it lacks some of the 2016 model's minor tech updates and active safety features, the core driving experience is largely the same, making it a compelling choice for those seeking luxury performance on a budget.

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